Fig. 3

Optical signals of the Bleb-induced triggered activity (BIT). a, b, c Optical action potentials simultaneously detected by three elements of the photodiode array. The traces were recorded at 700 nm 2 h after the application of Bleb (100 μM). Right Sketch of the preparation illustrates the location of the photodiode array on the preparation. Other symbols are as defined in Fig. 1